scholarly journals Trait means or variance—What determines plant species' local and regional occurrence in fragmented dry grasslands?

2021 ◽  
Author(s):  
Kolja Bergholz ◽  
Klarissa Kober ◽  
Florian Jeltsch ◽  
Kristina Schmidt ◽  
Lina Weiss
Keyword(s):  
Plant Species ◽  
Dry Grasslands

Patterns of fine-scale plant species richness in dry grasslands across the eastern Balkan Peninsula

2015 ◽  
Vol 63 ◽  
pp. 36-46 ◽  
Author(s):  
Salza Palpurina ◽  
Milan Chytrý ◽  
Rossen Tzonev ◽  
Jiří Danihelka ◽  
Irena Axmanová ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Balkan Peninsula ◽  
Plant Species Richness ◽  
Fine Scale ◽  
Dry Grasslands

scholarly journals The type of nutrient limitation affects the plant species richness–productivity relationship: Evidence from dry grasslands across Eurasia

2018 ◽  
Vol 107 (3) ◽  
pp. 1038-1050 ◽  
Author(s):  
Salza Palpurina ◽  
Milan Chytrý ◽  
Norbert Hölzel ◽  
Lubomír Tichý ◽  
Viktoria Wagner ◽  
...  
Keyword(s):  
Species Richness ◽  
Nutrient Limitation ◽  
Plant Species ◽  
Plant Species Richness ◽  
Dry Grasslands

scholarly journals Patterns of Genetic Variation across Altitude in Three Plant Species of Semi-Dry Grasslands

PLoS ONE ◽  
2012 ◽  
Vol 7 (8) ◽  
pp. e41608 ◽  
Author(s):  
Thomas Hahn ◽  
Chris J. Kettle ◽  
Jaboury Ghazoul ◽  
Esther R. Frei ◽  
Philippe Matter ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Plant Species ◽  
Dry Grasslands

Threatened dry grasslands in the continental boreal forests of Wood Buffalo National Park

1997 ◽  
Vol 75 (8) ◽  
pp. 1363-1370 ◽  
Author(s):  
A. G. Schwarz ◽  
Ross W. Wein
Keyword(s):  
Plant Species ◽  
Populus Tremuloides ◽  
National Park ◽  
Vascular Plant ◽  
Detrended Correspondence Analysis ◽  
Diversity Indices ◽  
Grassland Species ◽  
Dry Grasslands ◽  
Community Types ◽  
Wood Buffalo National Park

Dry grasslands in Wood Buffalo National Park are unique biological features at 60°N latitude, since they contain plant species normally found in more southern grasslands at 50–55°N latitude. The objectives of this study were to inventory dry grasslands, classify them according to similarity of species cover, and establish relationships with understory species in Populus tremuloides and shrub communities. Dry grasslands were studied at nine sites; most were clustered in the Salt River and Peace Point areas. The largest unit of grassland was about 3.0 ha, and most units were less than 0.5 ha. This contrasts with the hundreds of hectares recorded earlier in the century. Of the 128 vascular plant species identified, 29 are considered as southern, and of these, 15 are regionally rare. Sixty-four plots were classified into nine community types, using two-way indicator species analysis. A group of six communities were dominated by grass and shrub species with a component of southern grassland species. Three communities, strongly dominated by Populus and shrubs, represent community types that invade dry grasslands. Ordination of plots using detrended correspondence analysis showed relationships among the community types and a clear separation of southern grassland species from those found in forest communities. Vascular plant diversity, as represented by mean species richness, ranged from about 15 to 28, and Shannon diversity indices ranged from 1.883 to 2.615. The cover of southern grassland species was negatively correlated (correlation coefficient of −0.524) with cover of tall shrubs and trees, suggesting that the dry grasslands of Wood Buffalo National Park are threatened by tree and shrub invasion, which is due, in part, to a lack of recent fires at these sites. Key words: northern grasslands, biodiversity, endangered species, endangered spaces.

The relationship between plant species richness and soil pH vanishes with increasing aridity across Eurasian dry grasslands

2016 ◽  
Vol 26 (4) ◽  
pp. 425-434 ◽  
Author(s):  
Salza Palpurina ◽  
Viktoria Wagner ◽  
Henrik von Wehrden ◽  
Michal Hájek ◽  
Michal Horsák ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Soil Ph ◽  
Plant Species Richness ◽  
Dry Grasslands ◽  
The Relationship

scholarly journals Plant species selection by sheep in semi-natural dry grasslands extensively grazed in the south-western Italian Alps

2017 ◽  
Vol 39 (2) ◽  
pp. 123 ◽  
Author(s):  
Marco Pittarello ◽  
Alessandra Gorlier ◽  
Giampiero Lombardi ◽  
Michele Lonati
Keyword(s):  
Plant Species ◽  
Species Abundance ◽  
Stocking Density ◽  
Species Selection ◽  
Gps Tracking ◽  
Long Term Effects ◽  
North West ◽  
Dry Grasslands ◽  
Low Intensity ◽  
Intensity Grazing

Sheep can have an important role in the conservation of abandoned and shrub- and tree-encroached, semi-natural dry grasslands because their feeding behaviour is known to affect plant diversity and structure. Nevertheless, little information is available about feeding preferences of sheep at the sward-patch scale and about the effects of stocking density on their selectivity. Consequently, we investigated plant-species selection by sheep managed with a low-intensity grazing, examining the influence of stocking density and plant species abundance by means of vegetation surveys and animal GPS tracking. Sheep grazed a graminoid-dominated, semi-natural dry grassland (Festuco–Brometea) in Piedmont Region, north-west Italy. Plant species, classified into graminoids, suffruticose forbs, and herbaceous forbs, were selected with a different intensity by sheep, which preferred graminoids over suffruticose and herbaceous forbs. Plant species showing a high consumption ratio (CR), i.e. the level of selection of plant species (CR >10%), were mostly graminoids (e.g. Bromus erectus, Koeleria vallesiana and Stipa pennata). Furthermore, Carex species were also noticeably selected, in particular C. humilis, whereas spiny species and those with a rosette or prostrate forms were rarely grazed. The heterogeneity of stocking density over the pasture allowed testing of the relationships between stocking density and CR. For many species, the higher the stocking density, the higher was the CR, regardless of the abundance of dominant neighbouring species. Results suggest that sheep under low-intensity grazing conditions exert a specific plant-species selection in abandoned dry grasslands. By regulating the stocking density through the management of grazing sheep, it may be possible to condition the consumption of certain plant species, with medium–long-term effects on the botanical composition.

scholarly journals Airborne Hyperspectral Data Predict Fine-Scale Plant Species Diversity in Grazed Dry Grasslands

2016 ◽  
Vol 8 (2) ◽  
pp. 133 ◽  
Author(s):  
Thomas Möckel ◽  
Jonas Dalmayne ◽  
Barbara Schmid ◽  
Honor Prentice ◽  
Karin Hall
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Hyperspectral Data ◽  
Plant Species Diversity ◽  
Fine Scale ◽  
Dry Grasslands

scholarly journals Impact of Short-Term Abandonment on the Structure and Functions of Semi-Natural Dry Grasslands

Botanica ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 40-48
Author(s):  
Domas Uogintas ◽  
Valerijus Rašomavičius
Keyword(s):  
Plant Species ◽  
Plant Traits ◽  
Vascular Plant ◽  
Ellenberg Indicator Values ◽  
Indicator Values ◽  
Short Term ◽  
Dry Grasslands ◽  
Vascular Plant Species ◽  
The Impact ◽  
Structure And Functions

AbstractA study of the impact of short-term abandonment on the structure and functions of semi-natural dry grasslands in Lithuania was performed. Data on the abundance of vascular plant species, hay and litter samples were collected. At the same time, plant functional traits and Ellenberg indicator values were used to evaluate the effect of abandonment on the structure and functions of semi-natural dry grasslands. The results showed that litter layer was significantly heavier in unmanaged plots compared to that in managed plots. The vascular plant species pool was higher in managed plots, where 62 vascular plant species were identified, while in unmanaged plots 46 species were identified. The species richness was significantly higher in managed semi-natural dry grasslands. Unmanaged plots had 12.3 ± 0.6 species, while managed plots had 17.7 ± 1.2 species per one square metre. Functional plant traits were similar in mowed and abandoned communities, while functional diversity was lower in unmanaged communities. These results are a clear indicator that the managing of semi-natural dry grasslands creates heterogeneity of the environment.

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